The soccer World Cup was a huge success for Twitter and its video offshoot Vine, but Premier League chiefs in the UK are promising a crackdown on users who attempt to share goals and highlights on social media. Broadcasting rights to the competition currently command billions of dollars but those figures will drop if fans can get their sporting fix for free on the Web. “You can understand that fans see something, they can capture it, they can share it, but ultimately it is against the law,” Premier League director of communications Dan Johnson told the BBC ahead of the new season, which kicks off this weekend. “It’s a breach of copyright and we would discourage fans from doing it. We’re developing technologies like GIF crawlers, Vine crawlers, working with Twitter to look to curtail this kind of activity.”